Lithium Energy Japan Patent applications |
Patent application number | Title | Published |
20150017521 | Energy Storage Device - Provided is an energy storage device including a container with high productivity and satisfactory corrosion resistance. In the energy storage device including the container housing an electrode assembly having a positive electrode and a negative electrode, and electrolyte solution, the container is made of stainless steel including 0.09% by weight or more aluminum and has welded portions and where the stainless steel is welded. | 01-15-2015 |
20140255767 | ENERGY STORAGE DEVICE - An energy storage device includes an electrode assembly, a container that contains the electrode assembly therein, a metallic cover member that closes the opening of the container and has a first fitting portion, and a current collector having a second fitting portion that is fitted to the first fitting portion in a fitted state. Thus, the compact energy storage device having a large capacity can suppress the positional deviation between the cover member and the current collector. | 09-11-2014 |
20140212740 | CONNECTING BODY, MANUFACTURING METHOD OF CONNECTING BODY, ELECTRIC STORAGE DEVICE, AND MANUFACTURING METHOD OF ELECTRIC STORAGE DEVICE - A connecting body for electrically connecting a power generating element and an electrode terminal positioned on a surface of a device container for housing the power generating element, the connecting body including: a plate portion positioned on the surface of the device container; and a protruding portion being in a position on a surface of the plate portion and displaced from a position of the electrode terminal, and having a tip end protruding to face the power generating element and a base with a peripheral edge surrounded with a principal face of the plate portion. | 07-31-2014 |
20140141306 | ELECTRIC STORAGE APPARATUS - An electric storage apparatus includes a battery cell, an accessory, a holding member for holding the battery cell and the accessory so that the battery cell and the accessory are on opposite sides, and a fixing member for fixing the accessory to the holding member. A distance between the fixing member and the battery cell is set to be equal to or larger than a distance between the holding member and the battery cell. | 05-22-2014 |
20140120400 | BATTERY ASSEMBLY - A spacer disposed between first and second unit cells has a corrugated portion. The corrugated portion includes first and second protrusions alternating continuously and repeatedly in a vertical direction. The first protrusions protrude from a center in the thickness direction toward the first unit cell to faun clearances that function as cooling passages between the first protrusion and the second unit cell. The second protrusions protrude from the center in the thickness direction toward the second unit cell to form clearances that function as cooling passages between the second protrusions and the first unit cell. The spacer includes a straight portion extending in a direction crossing the cooling passages so as to prevent elongation of the corrugated portion in a direction perpendicular to the cooling passages. | 05-01-2014 |
20140093765 | ELECTRIC STORAGE APPARATUS - Provided is an electric storage that includes at least one electric storage device, a first external housing for housing the at least one electric storage device, and a second external housing for housing the first external housing, wherein the first external housing and the second external housing respectively include engaging portions, which are engaged with each other. | 04-03-2014 |
20140093763 | ELECTRIC STORAGE APPARATUS - Provided is an electric storage apparatus including: a first external housing for holding at least one storage device that includes a first vertical wall portion for surrounding at least one electric storage device; and a second external housing including a second vertical wall portion for surrounding the first vertical wall portion and an open portion formed at an upper end. An outer surface of the first vertical wall portion is an inclined surface that is inclined to the second vertical wall portion, and one of an outer surface of the first vertical wall portion and an inner surface of the second vertical wall portion includes a protrusion portion that protrudes toward the other. | 04-03-2014 |
20140093756 | ASSEMBLED BATTERY - An assembled battery includes plural electric cells, a covered member at least a portion of which is made of metal, and insulation cover. The covered member is disposed along side portions of the electric cells on which terminals are provided. The insulation cover includes a main portion interposed between the covered member and the side portions of the electric cells, and an auxiliary portion extending from the main portion along a projecting direction of the terminal. | 04-03-2014 |
20140091805 | BATTERY MODULE AND INSULATION INSPECTING METHOD OF BATTERY MODULE - A battery module includes a metal casing and a battery cell accommodated in the casing. The casing is provided on its outer surface with an insulation layer and a conductive portion. | 04-03-2014 |
20140087229 | ASSEMBLED BATTERY - An assembled battery includes: a case in which plural electric cells are accommodated; and an abutment member which abuts against the electric cells accommodated in the case to position the electric cells with respect to the case. The abutment member includes a first projection inserted into a first gap defined by the case and the mutually adjacent electric cells to align the abutment member. | 03-27-2014 |
20140087223 | ELECTRIC STORAGE ELEMENT - A battery includes positive and negative external terminals having exposed portions exposed from a casing to the outside, positive and negative current collectors connected to the external terminals, and electrode assemblies having positive and negative electrodes and a separator. The positive and negative electrodes are wound with the separator being interposed so as to have positions shifted to opposite sides in a width direction to the separator. Formed in the casing is a narrowly elongated gap extending between the positive current collector side and the negative current collector side. The positive electrode side of the gap is closed by a closure member. A foreign material is prevented from moving without decreasing an electric capacity of the battery and deteriorating injection property of an electrolytic solution. | 03-27-2014 |
20140087222 | ELECTRIC STORAGE ELEMENT - An electrode assembly has a positive sheet, a negative sheet, and separators that are stacked and wounded. A joint portion is formed by thermally fusion bonding or compression bonding of the separators at one end in a width direction thereof so that one end of the positive sheet on an opposite side in a width direction with respect to a positive lead is wrapped by the separators. Arranged outside of the joint portion in the width direction is a separating portion where the separators are separated from each other. A protecting layer made of an insulating material is formed on the end face of the positive sheet. The positive sheet is reliably prevented from being in contact with a foreign material. | 03-27-2014 |
20130309539 | METHOD FOR PRODUCING ELECTRIC STORAGE DEVICE, SPACER AND ELECTRIC STORAGE DEVICE - A method for producing an electric storage device having a bus bar and an electric storage element equipped with an external terminal includes the steps of: arranging the electric storage element having the external terminal, positioning a resin member having either one of a receiving portion or a projection relative to the electric storage element, arranging the bus bar having the other one of the receiving portion or the projection on the external terminal, connecting the bus bar to the external terminal, and inserting the projection into the receiving portion in the step of arranging the bus bar. | 11-21-2013 |
20130189549 | ELECTRIC STORAGE APPARATUS - Provided is an electric storage apparatus including: an electric storage device; a circuit module; and an enclosure for housing the electric storage device, wherein: any one thereof includes an engaging portion; any one of the remaining ones includes an engaged portion; and the engaging portion and the engaged portion are engageable with and disengageable from each other. | 07-25-2013 |
20130183573 | POWER SOURCE UNIT - A power source unit includes a battery module including a stack and a coupling member that binds the stack, the stack including a plurality of battery cells aligned, and a container that accommodates therein the battery module. The container includes a projecting portion projecting from an inner wall of the container toward a surface of the battery module, and a top end portion of the projecting portion is located separately from the coupling member. | 07-18-2013 |
20130183544 | BATTERY MODULE AND POWER SOURCE UNIT - A battery pack includes a stack including a plurality of battery cells aligned, holding plates respectively provided on side faces of the stack for holding the stack, a coupling member disposed along a direction in which the battery cells are aligned and fixed to the holding plates to bind the plurality of battery cells, and an insulating member provided between the coupling member and the plurality of battery cells. The insulating member includes projecting portions disposed adjacent to and along at least one of side faces of the coupling member and projecting toward the coupling member. | 07-18-2013 |
20130183543 | POWER SOURCE UNIT - A power source unit includes a battery main body including at least one battery cell, an electric device located on the battery main body, and a wall located along a lateral side of parts included in the electric device. The wall is taller than a height of the parts. | 07-18-2013 |
20130157113 | ELECTRIC STORAGE DEVICE, MANUFACTURING METHOD OF ELECTRIC STORAGE DEVICE, AND BUS BAR USED FOR ELECTRIC STORAGE DEVICE - An electric storage device includes: electric storage elements including external terminals; and bus bars connected to the external terminals, wherein the bus bars include thin-walled portions, and the thin-walled portions and the external terminals are welded together. | 06-20-2013 |
20130095359 | BATTERY PACK - A battery pack includes a stack case, spacers, and inner cover members as insulating members. The stack case accommodates a plurality of single cells arranged in line. Each of the spacers is disposed between adjacent single cells. The inner cover member is provided for each of the single cells, and is disposed on a surface of the single cell where terminals are provided. The inner cover member includes a base portion opposed to a surface of the single cell between terminals and terminal insulating portions provided on both ends of the base portion and covering the terminals. The inner cover member is attached to the spacer. | 04-18-2013 |
20130084478 | BATTERY PACK - Even if a junction box is laid out such that a region where a battery cell is disposed is divided, the battery cell is effectively cooled. A battery pack includes: a battery pack case ( | 04-04-2013 |
20130084477 | BATTERY PACK - A battery and an electrical apparatus accommodated in a battery pack body ( | 04-04-2013 |
20130078488 | ELECTRIC STORAGE APPARATUS - An electric storage apparatus includes a holder for holding a plurality of electric storage devices. An inter-electric storage device air passage is formed between the electric storage devices. A holder body of the holder includes: at least one wall portion extending in a second direction, the at least one wall portion being opposed from outside to an electric storage device located at one end in a first direction among the plurality of electric storage devices; and an air vent portion formed side by side with the wall portion in a third direction orthogonal to the first and second directions, the air vent portion being opened to the first and second directions. | 03-28-2013 |
20120315520 | BATTERY PACK | 12-13-2012 |
20120301779 | METHOD OF MANUFACTURING BATTERY, AND BATTERY - A battery comprises: a container including a bottom portion, long-sidewall portions each standing on a corresponding one of longer side portions of the bottom portion, short-sidewall portions each standing on a corresponding one of two shorter side portions of the bottom portion, and a welded portion in which portions of a flat plate are mutually welded; an electrode assembly housed in the container; an electrode terminal; and a lid closing the container, the container having a cuboid shape, the bottom portion being rectangular, the long-sidewall portions each being rectangular, the short-sidewall portions each being rectangular, the flat plate being made of metal and being folded, and the portions of the flat plate being mutually abutting or overlapping. | 11-29-2012 |
20120270081 | BATTERY UNIT - A battery unit includes a plurality of battery cells and a cooling substrate. The battery cells are disposed so as to hold the cooling substrate therebetween. A face of the battery cell other than a terminal face thereof where terminals are provided is attached to a cooling surface of the cooling substrate so as to transfer heat between the cooling surface and the face attached thereto. | 10-25-2012 |
20120082875 | Battery pack and electrically powered vehicle including the battery pack - Provided is a battery pack that can uniformly cool a plurality of electric cells, prevent a breakdown of the electric cells, and provide high performance of all electric cells. The battery pack includes a packaging case in which: each adjacent ones of a plurality of electric cells in the first direction define a ventilation space; first and second passages are defined that extend in the first direction and that are arranged to have the plurality of electric cells located between the first and second passages in a second direction intersecting the first direction, wherein gas supplied to the first passage flows through the ventilation spaces to the second passage; and a flow rate limitation device is provided that is arranged in an upstream area of the first passage and that limits a flow rate of the gas flowing through one of the plurality of ventilation spaces, which leads to the upstream area of the first passage, to a predetermined flow rate. | 04-05-2012 |
20120070716 | BATTERY PACK AND ELECTRICALLY POWERED VEHICLE PROVIDED WITH SAME - Provided is a battery pack that ensures sufficient sealing performance between a tray and a cover by arranging a necessary sealing member between a lower flange portion of the tray and an upper flange portion of the cover that are held in abutment with each other. The tray and the cover covering the tray constitute a packaging case of electric cells. At least a part of a facing surface of at least one of the lower flange portion of the tray and the upper flange portion of the cover that abut each other forms a non-abutting portion that is located apart from the facing surface of the opposite flange portion, and a sealing member is arranged on the non-abutting portion. | 03-22-2012 |